In September the former Full House starlet, 28, will add to her household when she gives birth to her second tot.

Danica McKellar

The Wonder Years star (due this fall) hopes her first child with husband Mike Verta will be a mini-mathematician like Mom.

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Published in the September 20, 2010 issue of People: Correction In our Aug. 30 issue, we incorrectly stated three ages in the ‘90s celeb babies story. Sarah Michelle Gellar is 33; Mario Lopez is 36; and Joey Fatone is 33.